Input/Output behaviour of nonlinear analytic systems: Rational approximations, nilpotent structural approximations
Hoang Ngoc Minh, Gérard Jacob, Nour Eddine Oussous · Birkhäuser Boston eBooks · 1991
We present two computing methods of the I/O behaviour of analytical nonlinear systems. The first uses non commutative rational expressions, the second is based on a factorization theorem related to free Lie algebra and shuffle product. We give the sketch of an implementation in Macsyma.